How to best apply creating airfoils with multiple Re numbers

Question

So, the new features of the airfoil maker are pretty cool - how do we correctly apply them?

I've read the Airfoil Maker manual, I've read the XP11.10 release notes, but from what I've read about Reynolds numbers and how they are generated for airfoils how do we apply this in the creation of an airfoil for XP11?

What's the best approach?

Should you choose one air density i.e. Sea Level and create Re numbers for a range of speeds for a given airfoil?

Should you choose a particular airspeed for a given airfoil and use a range of air densities to generate the Re numbers?

Comments

After some time thinking about this, I believe all I really need to know is which air viscosity value to use in calculating the Re number for the desired airfoil.